Wood biowaste in goatskin preservation to reduce salinity in the tannery wastewater.

A prime technique for paused bacterial degeneration in hide/skin is preservation. The most used and familiar technique for preservation is salt curing. In this research, biowaste (sawdust) is used with a lower salt percentage to preserve goatskin.

Solid organic acid, aminopolycarboxylic acid and alkali salt in deliming to reduce nitrogenous pollution in tannery wastewater.

In leather manufacturing, ammonium-free deliming is gaining popularity because deliming with traditionally used ammonium salts contributes ammonia-nitrogen (NH-N) into wastewater. Wastewater contains NH-N effect on the treatment facility. In this study, an ammonia-free deliming agent-a combination of citric acid (CA), sodium hexametaphosphate (SHMP), and ethylenediaminetetraacetic acid (EDTA) is utilized against the traditional deliming agent to limit the release of NH-N.